As a father of a teenage daughter, I was particularly alarmed to learn that a 9-year-old girl was sexually abused during a lunch break in a Harlem school – and the crime went unpunished because the principal never called the police or investigated the allegations.

The girl’s mother told The New York Daily News that her third-grade daughter was sexually assaulted by her fellow classmates on school property and school officials did nothing to stop it.

According to the Daily News, the ringleader described as a “sexual deviant” reached under the victim’s skirt while they were sitting on a rug during reading period.

“She said, ‘Mom, (the assailant) touched me between my legs,’” the girl’s mother recalled in an interview at her lawyer’s office. “Her face was completely red, her eyes were swollen.”

About a month later, in October, another boy exposed himself and rubbed against the girl’s buttocks, the mother and a medical assistant told The Daily News.

The girl’s mother told the newspaper that she approached Charyn Koppelson, the principal of Public School 194, and Koppelson said she was unaware of the incident and didn’t file a report or punish the students.

Either Koppelson is not telling the truth or she’s totally out of touch with serious sex crimes that are occurring in the classrooms of her Harlem school. The victim’s mother said Koppelson casually dismissed her pleas for an investigation.

“She said, ‘He’s just a kid,’ ” the mother recalled. “(The incidents) were never placed in the system at all.”

So why do some of our black educators turn a blind eye to horrific crimes against our young girls? And why do black boys feel it’s normal to sexually abuse our daughters?

Each week, it seems, I’m hearing more reports of black boys raping or sexually abusing young girls.